TABLE 1

Maximum unbound and total plasma concentrations of hormones in humans observed during the third trimester of human pregnancy

Hormone	Unbound	Total
Hormone	nM	nM
PGH^{^a}	1	2
GH^b	0.015	0.05
Estradiol^c	∼2	100
Estriol^d	5	80
Cortisol^e	70	800
Progesterone^f	7	540
Testosterone^g	0.2	15

↵^a Wu et al., 2003.
↵^b Baumann et al., 1988; Caufriez et al., 1993.
↵^c Lindberg et al., 1974.
↵^d Boroditsky et al., 1978; Voss, 1999.
↵^e Lindholm and Schultz-Moller, 1973; Demey-Ponsart et al., 1982.
↵^f Meulenberg and Hofman, 1989.
↵^g O'Leary et al., 1991.